Going with my gut on these since all of these final pickings are all fantastic tracks and made it here for a reason.....

1.) The Legend of Zelda: Skyward Sword > Probably one of the best if not the best first boss battles in any Zelda game to date so far! Oh and of course the music.

2.) Metroid Prime 3: Corruption - Rundas > So much emotion, such sad undertones, much powerful overtones, and a wonderfully seem less blend of Science Fiction sounds beautifully combined for one of the greatest Masterpieces of video game music ever created for the ears!!!!!